Thanks Ean.

Turns out there's a node called Sampler, which I modified to create make it
sample the X,Y of the image and present the RGBA values for that position.
The node updates itself if the footage piped into the node changes. Gizmo
attached, maybe it could be useful for someone.

// Fredrik



On Wed, Apr 3, 2013 at 2:24 PM, Ean Carr <[email protected]> wrote:

> Use an XY_Knob. For example...
>
> nuke.createNode('NoOp').addKnob(nuke.XY_Knob('position'))
>
>
> -Ean
>
>
>  On Tue, Apr 2, 2013 at 11:49 AM, Fredrik Averpil <
> [email protected]> wrote:
>
>>  Hi, does anyone know how I could ask the user to choose a pixel using
>> i.e. a crosshair using Python?
>>
>> What I want is X,Y - I do not need the rgb values or anything like that.
>> Just the pixel selected by the user.
>>
>> // Fredrik
>>
>>
>>
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Attachment: RGBASampler.gizmo
Description: Binary data

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